package com.bamboo.ucenterservice.mapper;

import com.bamboo.ucenterservice.entity.UcenterMember;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;

/**
 * <p>
 * 会员表 Mapper 接口
 * </p>
 *
 * @author jack.wu
 * @since 2020-07-14
 */
public interface UcenterMemberMapper extends BaseMapper<UcenterMember> {

    /**
     * 查询当天注册人数
     * @param day 当天
     * @return 注册人数
     */
    int selectRegisterCount(String day);
}
